from PIL import Imagefrom pylab import *from numpy import *from PCV.localdescriptors import dsift, sift"""This is the dense SIFT illustration, it will reproduce the plotin Figure 8-2."""dsift.process_image_dsift('../data/empire.jpg', 'empire.sift', 90, 40, True)l,d = sift.read_features_from_file('empire.sift')im = array(Image.open('../data/empire.jpg'))sift.plot_features(im, l, True)show()